Graph Pad Molarity Calculator . This molarity calculator is a tool for converting the mass concentration of any solution to molar concentration (or recalculating grams per ml to moles). Please paste the dna sequences (optional, only if sequence length is unknown): Kalkulator Molaritas, Kalkulator Pengenceran, dan Kalkulator Kosentrasi from urip.wordpress.com The molarity calculator calculates the mass of compound required to achieve a specific molar concentration and volume. Molarity calculators (quickcalcs) is a web application (no installation required) that helps to dilute a stock solution or to calculate molarity from mass and volume, mass from volume and concentration, volume from. The following equation is used for calculating acid and base molarity where the concentration is given in wt %: